at ICSharpCode.SharpDevelop.Project.MSBuildBasedProject.GetEvaluatedProperty(String propertyName)

at ICSharpCode.SharpDevelop.Project.MSBuildBasedProject.LoadProjectInternal(ProjectLoadInformation loadInformation)

at ICSharpCode.SharpDevelop.Project.MSBuildBasedProject..ctor(ProjectLoadInformation loadInformation)

18:01:58.103 [1] WARN - ErrorCode = MSB4132

18:01:58.103 [1] WARN - Project load error

--> Exception:

ICSharpCode.SharpDevelop.Project.ProjectLoadException: The tools version "12.0" is unrecognized. Available tools versions are "2.0", "3.5", "4.0". M:\Factorial\Factorial\Factorial.csproj ---> Microsoft.Build.Exceptions.InvalidProjectFileException: The tools version "12.0" is unrecognized. Available tools versions are "2.0", "3.5", "4.0". M:\Factorial\Factorial\Factorial.csproj